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Description
Technical data for the ER25 Ø5 mm collet
| Technical Data | |
|---|---|
| Hole diameter d | 5-4 mm |
| Outside diameter D | 26 mm |
| Overall length L | 34 mm |
ER25 collet 5 mm – versatile clamping of common shanks in a system with increased rigidity
The ER25 collet with a clamping range of 4-5 mm enables stable clamping of tools with one of the most common shank diameters in a system featuring reinforced construction. Made from hardened 65Mn steel with a hardness of 44-48 HRC in accordance with DIN 6499, it ensures a maximum radial runout of 0.015 mm. A clamping capacity of 1 mm guarantees a broad range of tool fitting that exceeds the capabilities of compact systems.
Key advantages of the ER25 5 mm collet
- Radial runout not exceeding 0.015 mm in accordance with DIN 6499 – positioning precision crucial for accurate milling and drilling of demanding parts
- Clamping range of 4-5 mm with a tolerance of 1 mm – flexibility in tool selection allows shanks with slightly different dimensions to be fitted
- Construction measuring 26×34 mm with increased mass – effective vibration reduction during intensive machining with medium-diameter tools
- 65Mn spring steel hardened to 44-48 HRC – durability that guarantees consistent clamping properties over many years of use
- Compliance with the international ISO 15488 standard – universal interchangeability with holders from reputable clamping system manufacturers
The collet is designed to secure end mills, twist drills, reamers, and countersinks used for machining structural steels, aluminum alloys, and engineering plastics. The 5 mm diameter is among the most frequently used tool shank sizes in industrial and workshop production. The ER25 system, measuring 26×34 mm, offers better vibration damping than the smaller ER11 and ER16 systems, resulting in higher machined surface quality. A proven solution for production facilities performing a variety of cutting operations.
Frequently asked questions
Used to clamp end mills, twist drills, reamers, countersinks, and other tools with cylindrical shanks within the 4-5 mm range. A clamping capacity of 1 mm provides flexibility in mounting shanks with slightly different dimensions.
The ER25 design, measuring 26×34 mm, has greater mass and rigidity than ER16 (17×28 mm). The more substantial construction dampens vibration more effectively during machining, improving surface finish quality and extending the life of the tools used.
The compact ER11 has dimensions of 11.5×18 mm, the standard ER16 is defined by dimensions of 17×28 mm, the versatile ER20 is identified by its 21×31 mm size, the intermediate ER25 is defined by dimensions of 26×34 mm, the heavy-duty ER32 is recognized by its 33×40 mm size, and the large ER40 is distinguished by dimensions of 41×46 mm. The system designation is marked on the collet body in accordance with the requirements of DIN 6499.
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Shipping
All orders are delivered by courier company GLS. For orders exceeding 369 PLN gross shipping is FREE
| Courier GLS | Przelew24 / Prepayment | 14,76 zł gross | Delivery time 1 working day |
| Courier GLS | Cash on delivery | 17,26 zł gross | Lead time 1 working day |
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